I found Chris Nolan's lecture on search engines to be very useful. I learned a lot about searching the internet with search engines and how to refine your search so that you get results that are optimal for your purposes. I was not surprised that Google was the majority of the class' preferred search engine because it is my preferred search engine as well. I use Google frequently but never knew about the "I'm Feeling Lucky" button, Google Scholar, or how to best enter my search for accurate results. When Chris Nolan was explaining the basics about how search engines filter results by how many sites link to the site that are returned as top results, he explained that Google's complicated and superior filtration system allows them to have the confidence to have the "I'm Feeling Lucky" button to send users directly to the site Google feels will provide them with the information they are seeking. I was really impressed with the Google Scholar feature that Mr. Nolan explained. He showed us how to access Google Scholar and explained that it allows you to do a search on a topic and filter your results to be what Google considers as "Scholarly." This feature will undoubtedly be helpful for research papers and class assignments. I also found it helpful that he explained the different commands such as (+) and (-) and (") and how they can be used to help refine your search to get the optimal results out of Google.